Object reference error

Hi There,

I have created a simple ASP.net Web Application (2.0) and have added a web user control.

Now in my page I have added this control but I have registered like this,

<%@ Register Assembly="WebApplication1" Namespace="WebApplication1" TagPrefix="Custom" %>

Which means I want to access all the controls in my current Web Application project

Then I have added my user control like this,

<Custom:MyUserControl ID="MyUserControl1" runat="server" PublicProperty="Hello" />

Every thing is fine but when I execute the project, NO control on my user control gets "instantiated" and thus I receive error "Object Reference Not Set"

Note that My Control has,

1) Public property PublicProperty as String

2) 1 Label control

In Load Event Handler I am setting Text property of Label Control to PublicProperty. Here object reference NOT set error occurs (which means Label control is NOT initialized).

I don't want to register my control using Src, TagPrefix etc. Any ideas?

Thanks

I have a FormView with a FileUpload to upload an image in a database.

I keep getting an object reference error.(view code)

I am using this same script to upload the image to the database, but when I try to update the file upload I get the error.    



string strFilePath=Server.MapPath("\\images\\"+fupdImage.FileName);

        Byte[] image=null;
        HttpPostedFile imgVid=FileUpload.PostedFile;

        image=new Byte[imgVid.ContentLength];//Object reference not set to an instance of an object.
        imgVid.InputStream.Read(image,0,imgVid.ContentLength);

        if(FileUpload.HasFile) {
        string imageFile=FileUpload.PostedFile.FileName;
        int index=imageFile.LastIndexOf(".");
        string fileFormat=imageFile.Substring(index+1);
        fileFormat=fileFormat.ToLower();

        if(fileFormat=="gif"||fileFormat=="jpg"
    &nb

I am having a problem with rendering a menu control inside a server control. I am getting an error in the RenderContents override method when I try to render the Menu Control. The error I am getting is an Object Reference error. The code is below...

[ToolboxData("<{0}:Login runat=server></{0}:Login>")]
    public class Login : CompositeControl
    {
        #region Members

        Label tst;
        Menu loginMenu;
        MenuItem mainLoginItem;
        MenuItem loginItem;
        MenuItem usernameItem;
        MenuItem passwordItem;
        SubMenuStyle subMnuStyleControl;
        SubMenuStyle subMnuStyleMenu;

        bool isLoggedIn = false;

        #endregion

        #region Properties

        public bool IsLoggedIn
        {
            get { return isLoggedIn; }

            set { isLoggedIn = value; }
        }

        #endregion

        #region Overridden Events

        protected override void RenderContents(HtmlTextWriter writer)
        {
            AddAttributesToRender(writer);

            loginMenu.RenderControl(writer);

        }

        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);
            CreateChildControls();
            ControlSetup();

            #region Add CSS references
            string cssUrl = Page.ClientScript.GetWebResourceUrl(this.Ge

 Hi all,

I am not sure what's wrong with this block of code:

i set the drop down list value in page load .i ll change the value of it and once i click button the value must be displayed.but error is popped out in drop down list in button click event

public partial class edit : System.Web.UI.Page
{
   
    protected void Page_Load(object sender, EventArgs e)
    {
        string degree1; string id1;

        ArrayList AlDay = new ArrayList(); AlDay.Add("SELECT THE GENDER");

        AlDay.Add("F"); AlDay.Add("M");
        DropDownList1.DataSource = AlDay;
        
    
      

            id1 = "";
            degree1 = Request.QueryString["degree"];
            id1 = Request.QueryString["name"];

            if (!IsPostBack)
        &n

I have the following code

Dim ls_case_no() As String = Nothing
 Dim li_case_count As Integer = 0

  Dim li_case As String = ""
         li_case = xmlLocNode.InnerText
                                            If Not li_case = "" Then
                                                'li_case = li_case.Replace("-", "")
                                                ls_case_id = li_case


                                                ReDim Preserve ls_case_no(li_case_count)
                                                li_case_count = li_case_count + 1
                                                ls_case_no(li_case_count - 1) = ls_case_id
                                            End If

 myNode = xmlLocNode.SelectSingleNode("nc:CaseTrackingID", nsMgr)
                                             If Not myNode.InnerText = "" Then
                                                Dim li_case As String = myNode.InnerText
                                               lbl_caseno.Text = li_case
                                                ls_case_core = li_case
                                            End If

 If Not ls_case_no.Length = 0 Then
            For d = 0 To ls_case_no.Length - 1
                If Not ls_case_no(d) = ls_case_core Then
                     lb

Hi,

I'm getting the following error from Visual studio 2008 each time i debug my C# application: